Complaint
product name:Beryllia ceramic metallization,BeO ceramic with MoMn metallized,insolation ceramic,99.5% BeO
material: BeO:99.5% Al2O3: 0.18% SiO2: 0.13% Other: 0.19%
thermal conductivity:310 W/m.k dielectric constant:6.9 at 1Mhz
thermal expansion coefficient:9.2*10-6/ºC
density:3.05 g/cm3
pressureless sintering temperature:1750deg c
hardness: >HRA86 compressure strength:>350 Mpa
volume resistance:> 1014
dielectric breakdown strength:25 Kv/mm flatness:< 0.035
metallization material:MoMn
MoMn thickness:15-38um Ni plating thickness: 2-10um
Application of beryllium oxide ceramics
Beryllium oxide ceramics are widely used in microwave technology, electric vacuum technology, nuclear technology, microelectronics because of its high thermal conductivity, high melting point, strength, high insulation, low dielectric constant, low dielectric loss and good packaging process adaptability. It has been valued and applied in the field of optoelectronic technology, especially in high-power semiconductor devices, high-power integrated circuits, high-power microwave vacuum devices and nuclear reactors. It has always been the mainstream ceramic material for preparing high thermal conductivity components.
Technique Data of Beryllium Oxide Ceramic
| Item | Test Conditions | Specification | Unit | |
| B-97 | B-99 | |||
| Dielectric Constant | 1MHz | 6.90.4 | 6.90.4 | |
| (100.5)GHz | ||||
| Dielectric Loss Tangent | 1MHz | ≤4X 10-4 | ≤4X 10-4 | |
| (100.5)GHz | ≤8X 10-4 | ≤8X 10-4 | ||
| Volume Resistivity | 25ºC | ≥1014 | ≥1014 | Ω.cm |
| 300ºC | ≥10" | ≥10" | ||
| Breakdown Strength | D C | ≥15 | ≥20 | kV/mm |
| CMOR | - | ≥170 | ≥190 | MPa |
| Average Linear Expansion Coefficient | 25ºC~500ºC | (7.0~8.5)*10-4 | (7.0~8.5)*10-4 | I/K |
| Thermal Conductivity | 25ºC | ≥200 | ≥240 | W/m.K |
| 100ºC | ≥160 | ≥190 | ||
| Thermal Shock Resistance | 0ºC-800ºC | There should be no cracks | ||
| Bulk Density | ≥2.85 | ≥2.85 | g/ cm3 | |
| Chemical Stability | 1:9HCL | ≤0.3 | ≤0.3 | Mg/cm2 |
| 10% NaOH | ≤0.2 | ≤0.2 | ||
| Air Tightness | - | ≤10*10-11 | ≤10*10-11 | Pa. m3/s |
| Average Grain Size | - | 12~30 | 12~30 | μm |
Rongsheng Refractory is located in Xinmi city, "the Capital of Refractory" in China. We specialize in refractory products for nearly 30 years, covering a full range of shaped and unshaped refractory products, such as Refractory Bricks, Refractory Cement,Insulating and Dense Castables, Ramming Mass,Plastic Refractory,Gunning Mix,Ceramic Fiber Products, Graphite Products, Silicon Carbide Products, also other related products for more sophisticated applications.
280 workers, 20000 square meter workshop, 30 years experience, CE / ISO9001 / 2008 certificated, biggest raw refractory material original area in China, this is how we keep good quality and reliable cooperation for global valued customers. After nearly 30 years of innovation, Rongsheng Refractory has developed into a large-scale group enterprise known as a collection of science, industry and trade all over the world. Cooperate with many universities to establish research and development center, professional customer service and technology continuous tracking, can provide customers with differentiated, serialized, customized refractory products and services.
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Manufacturer, some time we help our clients to purchase related products as a trader.
2.What's the MOQ?
The MOQ varies for different products. Please contact us to understand.
3.How do you guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
4.Can you provide samples for free?
Yes, we can supply samples for free, and the freight will be undertaken by clients.
5.May I visit your factory?
Yes, we will arrange professional reception personnel to patiently explain to you.
6.Why choose you over other suppliers?
We have a large scale, strong strength, and rich experience, professional technology, and perfect customer service, and have obtained various certifications such as CE/ISO9001/ISO45001.
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